Alternative splicing of the murine receptor for advanced glycation end-products (RAGE) gene

Anastasia Z. Kalea, Nina Reiniger, Hojin Yang, Maria Arriero, Ann Marie Schmidt, Barry Hudson

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

The alternative splicing of pre-mRNAs is a critical mechanism in genomic complexity, disease, and development. Studies of the receptor for advanced glycation end-products (RAGE) indicate that this gene undergoes a variety of splice events in humans. However, no studies have extensively analyzed the tissue distribution in other species or compared evolutionary differences of RAGE isoforms. Because the majority of studies probing RAGE function have been performed in murine models, we therefore performed studies to identify and characterize the splice variants of the murine RAGE gene, and we compared these to human isoforms. Here, using mouse tissues, we identified numerous splice variants including changes in the extracellular domain or the removal of the transmembrane and cytoplasmic domains, which produce soluble splice isoforms. Comparison of splice variants between humans and mice revealed homologous regions in the RAGE gene that undergo splicing as well as key species-specific mechanisms of splicing. Further analysis of tissue splice variant distribution in mice revealed major differences between lung, kidney, heart, and brain. To probe the potential impact of disease-like pathological states, we studied diabetic mice and report that RAGE splice variation changed dramatically, resulting in an increase in production of soluble RAGE (sRAGE) splice variants, which were not associated with detectable levels of sRAGE in murine plasma. In conclusion, we have determined that the murine RAGE gene undergoes extensive splicing with distinct splice isoforms being uniquely distributed in different tissues. These differences in RAGE splicing in both physiological and pathogenic states further expand our understanding of the biological repertoire of this receptor in health and disease.

Original languageEnglish
Pages (from-to)1766-1774
Number of pages9
JournalFASEB Journal
Volume23
Issue number6
DOIs
StatePublished - Jun 1 2009
Externally publishedYes

Fingerprint

Alternative Splicing
Genes
Protein Isoforms
Tissue
Advanced Glycosylation End Product-Specific Receptor
RNA Precursors
Tissue Distribution
Brain
Health
Kidney
Plasmas
Lung

Keywords

  • DNA cloning
  • mRNA
  • Protein evolution
  • Soluble receptor
  • Species-specific splicing

ASJC Scopus subject areas

  • Biochemistry
  • Biotechnology
  • Genetics
  • Molecular Biology
  • Medicine(all)

Cite this

Alternative splicing of the murine receptor for advanced glycation end-products (RAGE) gene. / Kalea, Anastasia Z.; Reiniger, Nina; Yang, Hojin; Arriero, Maria; Schmidt, Ann Marie; Hudson, Barry.

In: FASEB Journal, Vol. 23, No. 6, 01.06.2009, p. 1766-1774.

Research output: Contribution to journalArticle

Kalea, Anastasia Z. ; Reiniger, Nina ; Yang, Hojin ; Arriero, Maria ; Schmidt, Ann Marie ; Hudson, Barry. / Alternative splicing of the murine receptor for advanced glycation end-products (RAGE) gene. In: FASEB Journal. 2009 ; Vol. 23, No. 6. pp. 1766-1774.
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